Terminal for pneumatic-tube apparatus.



No. 726,030.-' PATENTBD APR. 21, 1903. i

' J. T. COWLEY.

TERMINAL FOR PNEUMATIC [TUBE APPARATUS.

APPLICATION FILED JAR. 16, 1902.

10 MODEL.

UNITED STATE f PATENT OFFICE- JAMES 'r. COWLEYfOF BOSTON, MASSAcHUSETTsEA SIGNOE TO LAMSON ooNSoLIDArED- SToRE SERVICE COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY. i

TERMINAL FOR PNEUMATIC-TUBE AFPARAT-US.

SPECIFICATION forming part of Letters Patent No. 726,030, dated April 21, 1903.

Application filed January 16, 1902. Serial No. 89,946. (No model.) i

To all whom it may concern:

Be it known that 1, JAMES T. COWLEY,

Boston, in the county of Suffolk and State of Massachusetts, have invented certain new'and useful Improvements in Terminals for Pneumatic-Tube Apparatus, of which the following is a specification. My invention relates to new and useful improvements in terminals for pneumatic-tube m apparatus; and its main object is to provide a terminal in which the carriers will readily" drop through the outlet from the terminal and not be held in said: outlet owing to suetion. This and other objects are carried out by the construction illustrated in the drawings and hereinafter described.

My invention consists of certain novel fea tures hereinafter described, and particularly pointed out in the claims. y

In the accompanying drawings, which illustrate a constructionembodying my invention, Figure 1 is a View of the interiorlof an upward-discharge terminal with my improvement. 'Fig. 2 is a bottom plan" view of the same. Fig. 3 is a detail bottom plan view..

Like letters of reference refer to like parts throughout the everal views.

To the terminal A is connected a transmission-tube B, and to said terminal is also connected the return-tube O, through which the air passing from the tube around through the terminal A passes back. The outlet A of the terminal A, through which the carriers-are: discharged, is closed by the valve D, pivoted at E to the forked lever E, mounted outhe fixed shaft E and around said I shaft is a spring E one end, E of which is connected to said shaft in a suitable slot and the other end, E of which bears againstibe forked, 4o lever E, so that the valve D is kept firmly in:

position. By .means of the plate E, held on the squared end of the shaftE by thenutE and provided 'with a slot E3, the tension of the spring can be regulated by moving the plate E and tightening up the screw E in order to return the valve D quickly to its closed position. In the interior of the terminal A is secured at F the finger F, which extends downwardly, as shown, and guides the carrier outwardly and away from the interior of the terthe passage F 'around the finger F to the suc- 'tiontube' O, and thereby reduces the suction of the carriers. as they pass the guiding-fin- .nal A are united and held in' position by suitvfies the; vacuum and there is no suction or pull on thecarrier discharging from the termin ah, V

Between the two sections of'the terminal A, Fig. 1,is a slot-F extending from F?"v to F. This slotis formed between the two inwardlyprojecting curved flanges A on each section and is for the purpose of allowing a portion of the air to escape between the side walls A of the terminal A into thereturn-tube O instead of compelling all the air to pass through ger F. V

The two half sections composing the termi- 7 5' able bolts F, passing through suitable lugs in the. insidejof each section, and also by the bolts F on the ends of the terminal and which are also secured in suitable lugs.

Having thus described the nature of my invention and set forth-a construction embodying the same, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1'. In an apparatus of the character described, a terminal composed of two sections and having a slot between its inwardly-curved flanges for the passage of air, a transmissiontube, a return-tube, an enlarged outlet from the terminal for the carriers, a valve closing 9 said outlet, and means extending across the "passage leading to the suction-tube for guidvalve to its closed positionafter the discharge of the carriers, and means extending across the passage leading to the suction-tube for guiding the carriers to said outlet.

3. In an apparatus of the character described, a terminal, a transmission-tube, a return-tube, an enlarged outlet from the terminal for the carriers, a valve closing said outlet, a spring for returning said valve to its closed position after the passage of the carriers, a shaft on which said spring is mounted, a plate mounted on said shaft and adapted to be adjusted to vary the tension of said spring and provided with a slot, and a set-screw located in said slot for holding said plate in its adjusted position.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 13th day of January, A. D. 1902.

JAMES '1. COWLEY.

\Vitnesses:

E. L. HARLOW, A. L. lllnssnn. 

